OYSTER AND MACROALGAE DENSITY EFFECTS ON THE TREATMENT OF MARINE SHRIMP FARMING EFFLUENT

Authors

  • Iru Menezes GUIMARÃES CODEVASF – SE
  • Ícaro Gomes ANTONIO Universidade Estadual do Maranhão - UEMA
  • André Batista de SOUZA Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo
  • Henrique David LAVANDER Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo
  • Ricardo Luis Mendes de OLIVEIRA Mendes de OLIVEIRA Instituto Federal de Educação, Ciência e Tecnologia da Paraíba
  • Leônidas de Oliveira CARDOSO JÚNIOR Universidade Federal Rural de Pernambuco
  • Sílvio PEIXOTO Universidade Federal Rural de Pernambuco
  • Alfredo OLIVERA Universidade Federal Rural de Pernambuco

DOI:

https://doi.org/10.18817/repesca.v7i2.1069

Keywords:

Crassostrea rhizophorae, Gracilaria birdiae, Litopenaeus vannamei, Water quality, Density

Abstract

The evaluation of oysters and macroalgae densities effects in effluent treatment of autotrophic and heterotrophic shrimp culture systems were assessed in laboratory-scale. Native species of oyster (Crassostrea rhizophorae) and macroalgae (Gracilaria birdiae) were selected due to their local availability and aquaculture potential in northeastern Brazil. Three densities of oyster (0.2, 0.4 and 0.8 oyster.L-1) and macroalgae (2.0, 4.0 and 8.0 g.L-1) were assessed during 48 h to treat effluent water (24 h for each phase). Chemical and physical variables were measured each 8 h during experimental period (0 to 48 h). Variations in the concentration of chlorophyll a, pheophytin, total phosphorus, total phosphate, orthophosphate, total ammonia, nitrate, nitrite, total suspended solids, organic suspended solids and inorganic suspended solids showed that the two biological filters reduced significantly the concentration of the different pollutants in the shrimp effluent, however oyster and macroalgae densities definition should be more evaluated.

Published

2016-05-24

Issue

Section

Artigos